-- ToME - Tales of Maj'Eyal
-- Copyright (C) 2009, 2010, 2011 Nicolas Casalini
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
--
-- Nicolas Casalini "DarkGod"
-- darkgod@te4.org

base_size = 32

return { generator = function()
	local life = rng.range(5, 10)
	local size = rng.range(2, 5)
	local alpha = rng.range(40, 140) / 255
	local angle = math.rad(rng.range(0, 360))
	local distance = engine.Map.tile_w * rng.float(0.3, 0.7)
	local vel = distance / life
	
	return {
		trail = 1,
		life = life,
		size = size, sizev = size / life / 3, sizea = 0,

		x = -size / 2 + distance * math.cos(angle), xv = 0, xa = 0,
		y = -size / 2 + distance * math.sin(angle), yv = 0, ya = 0,
		dir = angle, dirv = 0, dira = 0,
		vel = -vel, velv = 0, vela = 0,

		r = 60,  rv = 0, ra = 0,
		g = 20 / 255,  gv = 0, ga = 0,
		b = rng.range(60, 120) / 255,  bv = 0, ba = 0,
		a = alpha,  av = -alpha / life / 2, aa = 0,
	}
end, },
function(self)
	self.nb = (self.nb or 0) + 1
	if self.nb < 6 then
		self.ps:emit(20)
	end
end,
20 * 6
